Features:

  • Ruler and protractor combination for easy measuring. Durable stainless steel body provide years' using. *Stainless steel edge is sharp, please be cautious while using AND KEEP IT AWAY FROM CHILDREN.
  • Quick and clear digital readout. Accuracy ±0.3°. Total length 400mm.
  • Zeroing at any angle for relative measuring. Locking screw for holding any angle.
  • Display resolution 0.1 degree. *The display could not read up-side-down. No reverse angle measurement.
  • *SCRATCHES ON RULERS ARE RESULTED FROM TOUCHING WITH EACH OTHER. IT MAY APPREAR ON BRAND-NEW PRODUCT.
I wish I had bought this years ago!

I wish I had bought this years ago. I've been a hobby woodworker for about 5 years; making some furniture, but mostly military flag and shadow boxes. On occasion, my mitered corners were less than perfect and all I had were combo squares and the big orange speed squares to help me out. The result was sometimes great miters and other times I needed twice as much wood filler as I should have needed. Fast forward to this handy tool. I wanted to bisect a 45 degree angle and knew 22.5 was the answer, but since my miter saw won't cut that, I needed to get close on the band saw and finish on the 12 in stationary disc sander. The angle finder locks into place, letting me get close with the band saw and sand to perfection. You can find/recreate angles as well as verify the setup of your saw and other shop tools I also used it to validate the 90 and 45 of my plastic speed squares. Turns out one that I've had for years was not 45, so whenever I used that for projects, I was sure to have sub optimal results.

Minor usability flaws, but amazing value for less than $20

The appearance doesn't inspire confidence: it's made out of fairly thin metal, with a low-budget readout in a flimsy plastic case. Basically a notch below the look and feel of a $7 digital caliper. But the edges are flat and true, and the measurements are very accurate and repeatable; the actual accuracy is definitely better than 0.5 deg. A minor annoyance is that although it has an on / off switch, even a very minor movement of the arms turns it on, so it often comes on when being put away (it turns itself off after a while, though). The hole for hanging it is just a tiny bit too small for your standard pegboard hooks. Finally, the direction of measurement is not clearly marked and not configurable, so unless you mark it or memorize it, you will probably end up mixing it up every now and then. Still, all things considered, it doesn't seem fair to complain about that for a very useful sub-$20 tool.

Good Product Accuracy Price (2 months, so far)

I believe I already did a review but I guess it didn't take. So this was just typical of a Prime order. I ordered, it was shipped and right on time it was at my front door. I wanted accuracy and I thought I knew enough to be able to use it satisfactorily and easily. And I was RIGHT! The cap, on the top at the apex, fell off but everything else was fine. What is the Longevity and Endurance? I don't know but expect them to be acceptable, as for the most part it will reside in a drawer and for the most part be used to set the angle of the blade on the Table Saw and the other 1/2 of 1% to check angles of??????????. I don't know why it shouldn't last as long as me but if it doesn't, I WILLLLLLLLL BE BACK!

Precise, Fast, Intuitive

Simple, precise and fast. I like the locking action on the hinge, a short twist locks it snug. The zero/tare function is simple and intuitive, using positive and negative angles. It can also be 'zero'd' to odd acute/obtuse angles, eliminating the math involved. Inexpensive and reliable so far. I've tested against my truest squares and it's been on the nuts each time. FYI, the corners are sharp. I filed mine down with no issues.

very accurate / you can also subtract/add from existing angles by using the reset button

This thing is just really cool. I mostly just bought it because it was a good deal(on a deals site) but I actually really like this thing. It is so accurate! I was thinking it was not going to be super accurate (by .1 degree) but it was. When I would measure my square (45 and 90) it came out to be 89.9 on one side and 90.0 on the other. When I measured a 45-degree square it read 45.0. Also when I would measure the flat side of the square (all the way open it would be like 179.9 or 180.0) Those are some good tolerances if you ask me! It also has a clear button. This has been really useful also for subtracting or working back from an angle. You can hold it to some existing angle and click reset to zero... then you can add or subtract to that angle. You can do all kinds of different things like this. The quality seems pretty good also. (This is one of those things I wish i could give 6 stars.)

Spot on accurate. Easy to Use

This came out of the box spot on accurate. I put it against a brand new framing square and read 90.0 inside and outside the frame. I had to install filler strip along the top of my newly remodeled kitchen cabinets that trimmed out the cabinets to the ceiling. Having a corner cabinet I needed something to give me the exact angle between cabinets.. I then divided the angle in half and that gave me the exact setting on my miter saw. I set the angle finder at that angle tightened it and transferred the tool to my miter saw and adjusted the blade at the exact angle and locked it down. The cuts were just perfect and this tool saved me a lot of guess work. For the price its well worth it to have the exact angle you need.

I have to say, I was skeptical, but ...

I have to say, I was skeptical, but I really am impressed. I zeroed it out on a surface plate and checked it against my Starrett combination square head and it was dead nuts at 45 and 90 degrees. I opened it completely and checked it against the flatness of the surface plate and it was dead on 180. Will update if anything changes.

It's not perfect by any means

As the senior-most sheet metal fabricaor and ME for a billion dollar company with a large sheet metal department I was forced to re-evaluate our protractor needs after a bout of faulty protractors from a traditional manufacuter. I decided to start looking around. Having tried every digi and manual on the market; This was the winner. It's not perfect by any means, but it hands down beats any other model I've experimented with. Pros: Digital readout means fast aquisition of angle. Accurate sensor as I could ever need. It reads to 1/10s degrees and it means it. No parallax error in readout = no need to do the one eye squint. Large radius lead edge means you can use it to measure interior angles of work pieces up to .68" interior radius Cons: the battery tray does have a very good positive lock and tends to displace itself with use. Also the + prong doesn't have a very good design for solid contact. The battery will likely outlive the contacts. That is just sad, but it's better than an $80 manual with a missed weld and a miscalibrated indicator mark out the box. Other thoughs: I chopped the lead blade down to the 3" mark and reamed the hole on the other end to make it easy to hang. Wish that was a standard design option

Yes!!!! You CAN disable the "Automatic On" function!!!

I bought this angle finder for use in my wood shop. Performs any angle finding or setting function perfectly and at the level of precision I require. As mentioned in other reviews the "Auto On" function is not ideal and the unit is easily turned "On" when not needed. The "Auto On" function can be turned off! Directions: While unit is "On", press and HOLD the "On/Off" button until the unit shuts off. The unit will not come on with movement of the blades until the "On/Off" button is pressed again. Also, when turned "Off" this way, you can position the blades any way you need and that position will be your "ZERO" when the unit is turned "On". Great tool at a great price. Will buy more as needed.

Large and Very Accurate (tested)

Regarding the: Crown Molding Protractor product. This item is about the length of your forearm when it is folded up. It has a claimed accuracy of 0.1 degrees, and I tested it against a certified machinist square (the most accurate 90-degree instrument I own) and this product measured 90.05 degrees! Awesome, and by far the most accurate digital angle finder I own (I own 3). Very solid build quality, and it even comes with a nice carrying case.

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